Improvement in devices for converting reciprocating into rotary motion



. J. SKINNER. Device for Converting Reciprocating into Rotary Motion.

No. 216,537. Patented when, 1879.

PM oi A a:

fly

, J; m "i ai o g i L fi i 0 [C I A I HE] fliie s i: I m 11 50)";

WWWM

N. PETERS, PHOYO-UTHOGRAPHER WASHINGTON. D C.

UNITED STATES, PATENT OFFICE.

JOHN SKINNER, OF CHARLOTTE, MICHIGAN.

' IMPROVEMENT IN DEVICES FOR CONVERTING RECIPROCATING INTO ROTARYMOTION.

Specification forming part of Letters Patent No. 216,537, dated June 17,1879; application filed November 12, 1878.

tion and adaptation of rack-bars to the pumprod, so that sudden strainand jar upon the parts are avoided; second, in the construction ofsuitable toothed sectors, ratchets, and pawls, in combination withrack-bars, for imparting a rotary motion to a chain of gear whichoperates the main shaft; and, third, in the peculiar construction,arrangement, and combinations of the various parts, as is more fullyhereinafter set forth.

Figure 1 is a side elevation. Fig. 2 is a plan view; and Fig. 3 is aperspective view of the lower end of the pump-rod, with the adjustablerack-bars connected thereto, and showing one sector with its ratchet andpawl.

In the accompanying drawings, which form a part of this specification, Arepresents a suitable frame, across which are properly journaled theshafts B, C, I), E, and F, the shaft B representing the maindriving-shaft. Upon the shafts O, I), and E, and meshing with eachother, are keyed or otherwise secured pinions G, H, and I, the former ofwhich meshes with a smaller pinion, a, upon the main shaft. Upon theouter end of the shaft B is secured a toothed driving-wheel, J, and thegrooved pulley K, the wheel J meshing with a pinion, 0, upon the shaftF, on the outer end of which is secured a balance-wheel, L.

M represents the pump-rod or main shaft of a windmill, upon either sideof which and at the lower end thereof are attached the rackbars N N bymeans of the pins 0, which pass through the slots at in one end of therack-bar into the pump-rod, while the other ends are secured by means ofthe springs e, as shown in Figs. 1 and 3.

Sleeved upon the shafts G and E are toothed sectors 0 O, which engage.with the rack-bars N N, as shown, and ratchet-wheels P P. Pivoted to thesectors are pawls R R, which are kept in engagement with theirrespective ratchet-wheels by means of the springs g, as is clearly shownin the drawings.

In practice, in the downstroke of the pumprod the sectors 0 O, by theirengagement with the rack-bars" on the pump-rod, are compelled to scribethe arc of a circle, while at the same-time the pawl of the sector 0compels the ratchet-wheel P to partially rotate, and with it the shaftto which it is connected, this partial rotation being transmittedthrough the chain of gear above described to the driw ing shaft andwheel. In the upstroke of the pump-rod the action of the sector,ratchet, and pawl upon the pumprod, is the same as above described inthe reverse direction, while the sector and pawl O R at the same timeresume their original position ready to operate again upon thedownstroke of the pump-rod.

In the continued reciprocation of the pumprod a continuous rotation isimparted to the driving-wheel and pulley, from which a belt may be ledto operate any light machinery. All sudden jar upon the rack-bars isobviated by the manner in which they are connected to the pump-rod,having as they do a slight vertical movement on the same.

What I claim as my invention is- 1. In a device substantially asdescribed, the racks N N, adjustably attached to the pump-rod,substantially as described.

2. In combination with a double rackbar, substantially as described, thetoothed sectors 0 0, provided with spring-pawls B It and ratchets P P,when arranged to impart a rotary motion to their respective shafts,substantially as specified.

3. In a device substantially as described, the combination of theadjustable rack-bars N N, toothed sectors 0 O, pawls R R, ratchetwheelsP P, shafts B, O, 1), E, and F, pinions G, H, I, J, a, and I), pulley K,and fly-wheel L, when arranged substantially in the manner and for thepurposes set forth.

JOHN SKINNER.

Witn esses H. s. SPRAGUE, CHAS. J. HUNT.

